When choosing and alexandrite engagement ring, most people focus on the color-change effect of the alexandrite stone. While that feature remains central, the shape of the stone is becoming just ...

The Mongol Empire was led by Genghis Khan, a conqueror who united the Mongolian tribes across Asia. Khan established a large, disciplined military infamous for its brutal and violent attacks as the ...

Gemstones exert a mysterious hold on collectors, thanks to a heady cocktail of optics, energy, provenance and passion. James ...

The finest example of Rhodochrosite in the world is on display in Denver, Colorado, at the Denver Museum of Nature and ...

Rocks come in all shapes and sizes, from boring gravel to crystalline quartz, but one woman's rock turned out to be a ...